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2. Rainbow lattice sunstone - Wikipedia

   en.wikipedia.org/wiki/Rainbow_lattice_sunstone

   Rainbow lattice sunstone, also known as rainbow lattice, is a type of orthoclase feldspar that exhibits a rare combination of aventurescence, adularescence, and a distinctive iridescence lattice pattern. The iridescence lattice pattern consists of inclusions that are the result of crystallographically oriented exsolution crystals within the ...

3. Sunstone - Wikipedia

   en.wikipedia.org/wiki/Sunstone

   Sunstone is a microcline or oligoclase feldspar, which when viewed from certain directions exhibits a spangled appearance. It has been found in Southern Norway , Sweden , various United States localities and on some beaches along the midcoast of South Australia.

4. Adularescence - Wikipedia

   en.wikipedia.org/wiki/Adularescence

   Rainbow lattice sunstone; References This page was last edited on 15 August 2023, at 22:33 (UTC). Text is available under the Creative Commons Attribution-ShareAlike ...

5. Category:Feldspar - Wikipedia

   en.wikipedia.org/wiki/Category:Feldspar

   Rainbow lattice sunstone; Rubicline; S. Sanidine; ... Sunstone This page was last edited on 7 September 2019, at 16:36 (UTC). Text is available under the Creative ...

6. Feldspar - Wikipedia

   en.wikipedia.org/wiki/Feldspar

   Feldspar (/ ˈ f ɛ l (d) ˌ s p ɑːr / FEL(D)-spar; sometimes spelled felspar) is a group of rock-forming aluminium tectosilicate minerals, also containing other cations such as sodium, calcium, potassium, or barium. [3]

7. Iceland spar - Wikipedia

   en.wikipedia.org/wiki/Iceland_spar

   The recovery of an Iceland spar sunstone from a ship of the Elizabethan era that sank in 1592 off Alderney suggests that this navigational technology may have persisted after the invention of the magnetic compass. [49] [50] William Nicol (1770–1851) invented the first polarizing prism, using Iceland spar to create his Nicol prism. [51]

8. Moonstone (gemstone) - Wikipedia

   en.wikipedia.org/wiki/Moonstone_(gemstone)

   The name moonstone derives from the stone's characteristic visual effect, called adularescence (or schiller), which produces a milky, bluish interior light. This effect is caused by light diffraction through alternating layers of orthoclase and albite within the stone.

9. List of gemstones by species - Wikipedia

   en.wikipedia.org/wiki/List_of_gemstones_by_species

   Actinolite. Nephrite (var.); Adamite; Aegirine; Afghanite; Agrellite; Algodonite; Alunite; Amblygonite; Analcime; Anatase; Andalusite. Chiastolite; Andesine ...